12) Sickle -cell disease is a genetic disorder that is caused by a DNA mutation that exchanges one base for another, which changes one amino acid in hemoglobin. What is this type of mutation?
a. Deletion
b. Frameshift
c. Insertion
d. Point

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.